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Finding the Fourth Proportional to 66,547.30, 91,836.17 and 36,332.28

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Solution

The fourth proportional to 66,547.30, 91,836.17 and 36,332.28 is: 50,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,547.30 : 91,836.17 = 36,332.28 : x
  2. Step 2: Convert to fraction form
    66,547.30/91,836.17 = 36,332.28/x
  3. Step 3: Cross multiply
    66,547.30x = 91,836.17 × 36,332.28
  4. Step 4: Simplify right side
    66,547.30x = 3,336,616,801.73
  5. Step 5: Solve for x
    x = 3,336,616,801.73/66,547.30
  6. Step 6: Final answer
    x = 50,139.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.